Royal Gorge DCC conversion

[djs]

What decoder would be reccommended to install in the HO Royal Gorge A & B units to operate with a Digitrax Super Empire Builder system?

[ABC]

Well from looking at Bachmann's diagrams of the units and going on personal memory, it appears like you will have to go with an N scale decoder. So get your multimeter out and get some readings, so you know if a decoder can handle your locos or not. And you're aware you'll have to hard wire these, right?

[djs]

Thanks for the reply, I do know it will have to be hard wired. I wasn't sure if it could use the same decoders that Bachmann uses in the dcc equipped units, if so, what model number are they? If not, which decoder model might work?

[ABC]

Bachmann decoders will be too large unless you do some milling to make more space. Get your multimeter out and see how many amps it will draw, I don't have any similar units to test as they are in storage currently. I suspect a digitrax DZ143 or DZ125 would be suitable, they are certainly small enough.
Here's the DZ125 compared to a dime:

This is image is the property of Digitrax Incorporated, and I am not claiming it as my image.

[djs]

The units appear to draw about .35 amps individually.